What are the best practices for using TypeScript with Vue 3?

What are the best practices for using TypeScript with Vue 3?

When using TypeScript with Vue 3, it's important to define your component props and emits clearly, use interfaces for state management, and leverage Vue's Composition API for better type inference.

Can you explain how to define props in TypeScript?

Sure! You can define props in TypeScript by creating an interface for your props and then using it in your component. For example:

interface MyComponentProps {
  title: string;
  count: number;
}

export default defineComponent({
  props: { 
    title: String,
    count: Number
  } as PropType<MyComponentProps>
});

What about using Vuex with TypeScript?

When using Vuex with TypeScript, you should define your state, mutations, actions, and getters with interfaces. This helps in maintaining type safety throughout your store.

Any tips for using the Composition API?

Yes! When using the Composition API, make sure to use ref and reactive for state management, and define types for your reactive properties to ensure type safety.